Any registrar worth using has an API for updating DNS entries.

I just found this with a quick search: https://github.com/qdm12/ddns-updater

I use http://www.duckdns.org/

cloudflare + the dynamic dns plugin for opnsense.

I use ddclient but in a docker container. Works great with minimal config

Have done it via bash scripts for years. Never had a problem. Since a few months i use https://github.com/qdm12/ddns-updater

Ixury for people that can have public IPs! :)

afraid still works like a charm. cloudflare is ok. duckdns is cool.

I solve it by paying way too much for a block of static IPs.

Afraid has a curl update. Cron job. It's that simple.

used a bash script and a cron job for a long time, now the whole topic is one of the projects i regularly rewrite whenever I want to get my hands dirty with a new programming language or framework.

Ddclient has done the trick for me, and my registrar supports it with an API

Cloudflare DDNS updated by ddclient on my OpnSense router. Cloudflare happens to be my current domain registrar. Honestly, my IPv4 doesn't change that often. And when I used to be on Comcast, they assigned a block of IPv6 addresses and the router dealt with that. Unfortunately, I now have Quantum Fiber who only assign a single IPv6 address, so I gave up on IPv6 for now.

Have you heard of the kuadrant project? It is for kubernetes and has a dynamic DNS element. Kuadrant.io

Ddns-updater and porkbun.

My ip updates maybe once every three months or so, but what i did was just write a script that checks the current ip and updates the domain registrar. My domain is on cloud flare, and they have an API through which I can do it. It's literally one POST request. There are solutions out there but I wanted a really simple solution I fully understand so I just did this. Script runs in cron every few hours and that's it.

Desec + Nginx Proxy Manager as a reverse proxy. Solves ddns and https with a letsencrypt wildcard cert.

Tor hidden service

I would go for registering my own domain and then rent a small vps and run debian 12 server with bind9 for dns + dyndns.
If you don't want to put the whole domain on your own name servers then you can always delegate a subdomain to the debian 12 server and run your main domain on your domain registrators name servers.

edit:

https://github.com/qdm12/ddns-updater

If your registrar is supported the ddns-updater sounds a lot easier.

What do you mean?

If you don't need actually public DNS, something like Tailscale might be an option.

@sith
If this is useful we had a bit of a conversation about DynDns options a while back. Im currently using Hetzner with my subdomain names being dynamically updated.
lemmy.ml/post/18477306

my router uses openwrt which supports dynamic DNS updating on its own for multiple providers, I currently am through namecheap on it.